The Afterimage Effect

By Jake Schipper

An afterimage is a type of optical illusion in which an image continues to appear briefly even after exposure to the actual image has ended. When our eyes are exposed to a hue for a prolonged period, the rods & cones become fatigued. You might notice this if you are reading something on colored paper, and then look away, you often see the inverse of the image.

Stare at the red dot for 15 to 30 seconds, then quickly look to the blank side. You will see a brief image of the actual picture.